Moving-picture machine.



P. H. PRUDE.

MOVING PICTURE MACHINE.

APPLIMTION FILED MGA, 1913.

Patented Mar. 10, 1914.

UNITED STATES PATENT OFFICE.

FRANK H. FRUDE, F CHICAGO, ILLINOIS, ASSIGNOR OF ONE-THIRD TO SAMUEL I.

A LEVIN, 0F CHICAGO, ILLINOIS.

MOVING-PICTURE MACHINE.

Specification of Letters Patent.

Patented Mar. 10, 1914.

@To all 'whom t may concern Be it known that l, FRANK H. Fauna, a citizen of the United States, residing at Clncago, county Iof Cook, and State of Illinois, have invented a new and useful Imtrols the closure thereof while one of the principal objects of my present invention is to provide arrangement and operation in which the film controls the closure of the motor circuit and the machine controls the opening of this circuit.

Another important object of the present invention is to provide improved mechanism and control for more positively and efficiently controlling the motor circuit.,

The invention and its various features will be fully understood from the following specification and the accompanying drawin s.

In these drawings: Figure 1 is a more or less diagrammatic View of a portion of the machine supporting frame together with the motor, gearing, intake reel and the auto! matic circuit controlling mechanism. Fig. 2 is a vertical diametral sectional View through the'circuit controlling mechanism, Fig. 3 is a top View of the cam controlled contact mechanism, Fig. 4 is a side View4 of a modified form of cam controlled contact mechanism, Fig. 5 is a sectional view on plane 5-5 Fig. 4, Fig. 6 is a top view of the cam plate and arm shown in Fig. 5, and Fig. 7 is a front View of the contact plate and .circuit terminal plate.

Referring to Fig. 1 10 designates part of the supporting frame of the machine. M represents the electric driving motor. R represents the intake reel for films such as F. The motor pulley 11 is connected by belt 12 with the pulley 13 on countershaft 14 which also carries the gear pinion 15.

This pinion meshes with the main machine gear 16 on the main shaft 17 and this gear meshes with thc gear 18 secured to the pulley 19 which is keyed to the slcevi` 20 journaled in the bearing 21, which bearing is supported from the machine frame .10 by the bracket Q2. A. belt Q3 passes about pulley 19 and the pulle)v 24 on the shaft 25 which carries the intake rcel It. Passing through and journaled in sleeve 20 is the shaft Q6 which is further journaled at its end in the bearing bracket 2T on the machine frame. This shaft 26 has secured thereto thc iilm sprocket member QS of the n'dinary and usual construction and whose teeth 26 engage in the openings 1 of the lihn in the well known manner.

The left end of sleeve Q() carries the disk Q9 from which extends the actuating arm or pin 30. .irourualed on the right end of shaft Q6 is a hub 31 havinga diagonal cam slot 32 extending partway around its Circumference, a cam pin 33 extending from shaft 26 into this groove whereby relative turning of the shaft and hub will eiiect longitudinal shift of the hub on the shaft. Ex-

tending radiully from the inner end of the hub is the arm or pin 31 for cooperating with the pin 3G of disk Q9. The hub carries at its outer end the flange or disk 34 to which is secured by screws 35 the contact plate or disk 36, this contact plate being insulated by the insertion of insulating inaterial 3T between the plate and the flange 34 and by the insulating material 38 between the screws 35 and the flange.

Mounted vertically on the machine frame 10 and adjacent the contact plate 36 is a block 39 of insulating material and secured at their lower ends to this block are the terminal springs 40 and 41 whose upper ends carry laterally extending pins 42 and 43 respectively terminating in contact heads 44 and 45. the pins passing readily through openings 46 and 47 in the block. The contact ,plate 36 by its coperation with the contact buttons and springs controls the current supp-ly' circuit for the motor M. Conductors 48 and 49 leading from the springs 40 and 41 respectively to the motor terminals 5() and 51, a main switch S being included in conductor 48 and connected with the current supply circuit C.

From the foregoing description the operation is apparent.

In Fig. 1 the various parts are shown in relative position for proper operation of the machine, the main switch being closed and the pin 33 being at theinner end of the cam slot 32 to hold the 'contact plate 30 against the contact buttons or heads 44 and 45, the pin 31l being behind the pin 30. If. the film and machine continue at the same rate the relative positions shown in Fig. 1 will be maintained. However;l should the film break, the shaft 26 will stop but the sleeve 2() will continue until the pin 30 engages behind and with the pin 31 on hub 3l. This hub will then be rotated on the shaft 26 and by the engagement of the cam slot 32 with cam pin 33 will be shifted inwardly along the shaft as shown in Fig. 2 to carry plate 36 away from the terminal heads 44 and 45 whereupon the motor ci rcuit is opened and the motor stopped. If the 'film should break between the takeup reel and the sprocket member 28 the shaft 2G will stop immediately, while if the break occurs between the sprocket member and the lens, the shaft will stop as soon as the broken .end of the film leaves the sprocket member. Thus upon breaking of the film the motor circuit is automatically opened and the takeup reel and the machine stop.

When the machine is to be started, the main switch S is closed and the hub 31 held out by hand to engage the contact plate with the terminal buttons until the machine and film run in synchronism. As theJ film is wound upon the intake reelthe rate at which it is drawn from the machine will constantly increase as the diameter of the wound up film increases. The tendency will then be for the shaft 26`to rotate faster than the sleeve 20. This is, however, prevented by the engagement of the pin 31 on the hub 31 with the pin 30 on the disk 29, and to prevent undue strain on the'film the belt 23 is sufficiently loose on its pulleys to slip and to thus alwa s take up the filnl at a uniform rate relative to the speed of the machine.

From the above description it is apparent that the film, when traveling at the proper rate, controls theclosure of the motor circuit, and' thatl the machine, upon breaking vof the film, effects adjustment to open the circuit and to stop the machine. The operations are positive and efficient.

In Figs. 4, 5 and 6 a modified form of cam mechanlsm is shown for controlling the circuit. The shaft 26 carries at its left end a polygonal colla/r 52 received in the polygonal pocket 53 in the hub 54. Like the hub s `own 1nY Figs. 1, 2 and 3 this hub 54 supports the contact plate 36 and the radial pin 31. The pin 5,5 onv disk 56 instead of being at right angles as in Figs. 1, 2 and 3, is inclined as shown. With this arrangement, when pin 31 is behind or outside of the inclined' cam pin 55 the hub 54 will shift outwardly to `ling mechanism for said circuit, a takeup reel for receiving a film, a rotatable member, said motor having driving connection with said reel and rotatable member, a second rotatable member and a sprocket member thereon for engaging the film whereby said second rotatable member is rotated upon travel of the film to the reel, and

means controlled upon rotation of said second rotatable member faster than the first mentionedv rotatable member to adjust said circuit controlling mechanism to close the motor current circuit.

2. In a moving picture machine the combination of a supporting frame, a driving motor and current circuit therefor, controlling mechanism for said circuit, a takeup reel for receiving a film, a rotatable member, said motor having driving connection with said reel and rotatable member, a second rotatable member and a sprocket member thereon for engaging the film whereby said second rotatable member is rotated upon travel of the film to the reel, and means controlled upon rotationof said second rotatable member slower than said first mentioned rotatable member to adjust said circuit controlling mechanism to open the motor current circuit.

3. In a moving picture machine, the combination of a supportin frame, a driving motor and current circult therefor, controlling mechanism for said circuit, a takeup reel for receiving a film, a rotatable member, said motor having driving connection with said rotatable member and reel, a second rotatable member and a sprocket member thereon for engaging the film whereby said second rotatable member is rotated upon travel of the film to the reel, and cam mechanism controlled upon relative rotation of said rotatable member to adjust said circuit controlling mechanism.

4. In a moving picture machine, the combination of a supporting frame, a driving motor, a takeup reel for receiving a film, a rotatablemember, said driving motor having driving connection with said take up reel and rotatable member, a second rotatable member concentric with said first mentioned rotatable member and carrying a sprfocket loq Localice member for engaging the film whereby said second rotatable member is rotated upon travel of the film, a hub on said second rotatable member, cam mechanism controlled by the relative rotation of said rotatable member to shift said hub, a circuit for said motor, and switch mechanism for said circuit controlled upon shifting of said hub.

5. In Ia moving picture machine, the combination of a supporting frame, adriving motor and a current supply circuit therefor, a. tak'eup reel for receiving a film7 a rotatable sleeve men'iber, said motor having driving connection with said sleeve member and reel; a shaft concentric with said sleeve member, and a sprocket member thereon for engaging said iilm whereby said shaft is rotated upon travel of the film to the reel, a

hub rotatable and slidable on said shaft and having a cam slotfa pin on said shaft engaging in said cam slot, an arm extending 'from said hub and another armextending from said sleeve member, said arms engaging upon relative rotation of said sleeve member and shaft to effect shift of said hub along said shaft, and switch mechanism for said motor circuit adjusted upon shifting of said hub.

n testimony whereof I have signed my name to this speciication in the presence of two subscribing Witnesses this SOthday of July, A. l). 191.3, at Chicago, Illinois.

FRANK H. FRUDE.

Witnesses SAML. LEVIN, NATHAN E. TANsoIv. 

